Answer: b The process is photosynthesis. It transfers carbon from the atmosphere to the biosphere.
Step-by-step explanation:
The given diagram is showing photosynthesis. Photosynthesis can be defined as a biochemical process in which the carbon dioxide and water from the atmosphere and soil are absorbed by the green plants and other autotrophs. These reactants are utilized by the plants to produce products called carbohydrates and oxygen. This way the food is produced in the form of carbohydrates is utilized by the plants and other organisms for their growth and development. This way the carbon from the atmosphere is transferred to the biosphere in the form of carbohydrates.